Automobile door and window lock



July 18, 1944. y H, M FREDHOLM 2,354,169

AUTOMOBILE DOOR AND WINDOW LOCK l Filed March 25, 1943 2 sheets-sheet 1 73 70 L UIMM d "UI m1 z||| L v10.9' .sa

July 18, 1944. H M, FREDHOLM l 27,354,169V

AUTOMOBILE DOOR AN) WINDOW LOCK Filed March 25, 1943 sheets-sheet 2 Patented July 18,

UNITED STATES PATENT OFFICE y 2,354,169 AUTOMOBILE Doon AND wnvnow Loox f Henry M. Fredliolm, Midlothian, Ill. appueauonnarch z5, 194s, serial Np. 480,538

' 2o claim; (ci. '1o-141) I This invention relates -to automobile door locks. More particularly my invention is concerned with improvements in an automobile door latching mechanism and means for operating the same to lock and unlock the mechanism from the inside of the `door so as to prevent accidental or unauthorizied opening of the door, as disclosed in my Patent No. 2,298,559, issued October 13, 1942, and embodies structural changes therein and means in combination therewith whereby certain unsatisfactory operating conditions thereof are overcome as well as new and highly desirable results produced.

The latching or locking mechanism and structure according to said patent generally embody a spring projected bolt, inside and outside handles on the door both of which are operable under normal downward movement thereof for individually retracting the bolt, the inside handle being further operative upon limited upward movement thereof lto dog the door latching bolt and thus prevent operation thereof bythe outside handle, and automatic latching means associated with the inside handle and operated upon the upward limited movement of that handle for locking and thus retaining the same in position to dog the bolt and prevent normal movements thereof, the automatic latching means being manually retractable only by initial pressure on `an operative part thereof at right anglesI to the further provides means for preventing accidental and also unauthorized movement of the inside handle from its upwardly moved and latched or dogged position of the bolt, as by forcing the same downwardly by a wire inserted through the window from outside the door, in as ymuch as two simultaneously applied operating pressures, exerted at right angles to each other, are required in order to move the inside handle from the latched position, and due to 4the operative arrangement of these parts this is possible only by hand and thumb operation from the inside' of the door. Hence all of the doors of an automobile could not heretofore be equipped with a latching mechanism having these desirable fea' ltures as at leastone door mustA be capable of being locked and unlocked from the outside thereof regardless of the latched condition of the in" side handles.

An object of my invention :is therefore to provide a latching mechanism for all of the doors of an automobile, having inside and outside hanthereof, wherein one of the handles may be operated from both the inside and the outside oi the door to lock the bolt against operation by the other handle and to eifect locking of the said one handle against accidental operation when the bolt is locked.

A further object of my invention is to provide l a door locking mechanism oi' the charactery disclosed in my said patent with key operated means operable from the outside of the door for moving the inside handle to and from latched position in which latter position the door locking mechanism is dogged, whereby the locking mechanism may be employed on all of the doors of an automobile ior like, authorized operation from the interior or exterior thereof.

Another object of the invention is the provision of automobile door latching means, the bolt of which is capable of being dogged from the inside of the door with provision for retraction of the bolt upon slamming the door to closed position,

and which locking means is also capable of being n operated to dog the bolt from the outside of the door and to undog 'the bolt from the outside whether or not it had been lockedfrom the'lnside retracting means inoperative and being latched in position when the outside bolt retracting means is thus rendered inoperative, and the inside bolt retracting4 means being capable of being un latched from the outside of the door and to render theoutside bolt retracting means operative.

It is accordingly a primary object of this in? vention to provide a door looking mechanism of the character disclosed in my said patent with key operated means for moving the inside handle to and from latched outside handle and window locking position whereby the locking mechanism dies for retracting or releasing the latching bolt u may be similarly operated from both the inside and outside oi the, door.

With the above objects irl-view, together with others that will become apparent in the course.

embodiment thereof, the door latch and window securing means being shown in locked positions with the inside handle latched in upwardly moved position.

Fig. 2 is a view similar to that shown'in Fig. 1 but limited to that portion thereof which illustrates the mechanism for unlocking the window when the inner handle is moved downwardly to unlatched position.

Fig. 3 is an inside elevational view of the portion of the door latching and locking mechanism ad- `iacent the outside door handle with a part of the casing in section.

Fig. 4 is a view similar to Fig. 3 but showing the operative parts in positions diilerent from that of Fig. 3.

Fig. 5 is a fragmentary', transversel section taken on line 5--5 of Fig. 1 and looking down through the latching mechanism4 to show the relationship of the key locking means thereto.

Fig. 6 is a partial outside elevation of an automobile door partly broken away to show the inside handle operating mechanism and its mounting with relation to the window locking mechanism the parts being substantially in reverse of that shown in Fig. 1.

Fig. 7 is an enlarged partial sectional view taken on the angularly disposed lines 1--1 in Fig. 1 showing the latching mechanism for deadlocking the inner door handle and the means for operating and releasing the same. and

Fig. 8 is a plan view of the mechanism shown in Fig. '7 but with the handle latching means disengaged by the releasing means.

Referring now in detail to the drawings by the use of reference numerals, IIi designates an automobile door a panel of which is suitably recessed for accommodating the lock mechanism about to be described. A housing base plate II, is secured to the inside of the door over a recess therein and includes a right angular flange I2 secured to the iront edge of the door and which ange is apertured for reception of a latching Ibolt I3. The bolt I3 is movably disposed within a recess I4 in a locking plate I5 which plate is slidably retained on the housing plate IIA by means of a guide lug I 5 and an angulariy bent edge of the housing cover plate Il. As shown,Y

particularly in Figs. 3 and 4, the locking bolt I3 y is carried by a bolt plate I 8having shoulders I9 at its rear end which lare normally yieldably maintained against stop lugs on the housing base plate I I, bymeans of a spring 2I engaging the locking bolt I 3.

A stud 22 is carried by the bolt plate I8 and projects through an elongated slot 23 in a link24,

one end of which is connected to the locking plate I5 at 25. A lost motion connection is thus provided between the bolt I3 and the operating link 24 which link is also connected with another bolt later to be described. The locking plate I5 is movable with the link 24 to outside handle dog- I ging position, as shown in Fig. 3, and to undogged position as indicated in Fig.

4, there being means provided to retain the plate I5 in each oi' these extreme positions comprising a yieldable lug or spring member 29 alternately engageable in recesses 21 and 21' in the upper edge of the locking plate.

The outside door handle 23 supports on the squared shaft 29 thereof, a`roll-back 30 having projections 3I and 32 which are disposed at substantially'right angles to each other. The proiection 3| is engageable with the bolt plate I9 for retracting the bolt I3 upon downward movement ofthe outside handle 28, and the projection 32 engages a shoulder 33 on 'the locking plate Il The locking plate I5 is moved to either of the positions of Figs. 3 and I4 by up and down movements of the inner handle or by similar movements of an outside operated key mechanism. Hence, for moving the plate I 5 by the key mechanism an elongated obliquely positioned lug 35 is disposed on the plate I5 so that its opposite faces are alternately engageable byfingers 36 and 3l carried by the key operatedtumblerlock spindle part 35 having a squaredl operating shaft 39, all as will be hereinafter more fully described in relation to the door latching mechanism and its operating parts.

To the inside of the door rearwardly and laterally of the housing plate II is secured a mounting plate 4I in which plate is journalled the inside handle actuated shaft 42 which carries a lever 43 to the free end of which is pivotally connected, as at 44, one end of an operating rod or link 45. 'I'he opposite end of the rod 45 is pivotally connected at 49 to the link 24, whereby the locking plate I5 is selectively movable to the positions of Figs. 3 and 4,- upon the movements of the inside -handle above referred to.

Rigid with the shaft 42 is a block 41 having an extension 49 on which is secured the hub 50 of the inside locking and bolt operating handle 5I which upon movement in an upward direction moves the plate I5 to a forward roll-back locking position through shaft 42, lever 43 and links 45 and 24 and which upon downward movement shifts the plate I5 to a rear or roll-back unlocking position, the handle upon further downward movement moving link 24 rearwardly until the stud 22 engages the forward end of the slot 23 whereupon the bolt plate I3 and its latching bolt I3 are retracted.

The lock according to the present invention, in

common with that of my patent, employs means for latching the inside handle 5I in deadlocking position and therefore includes the mechanism:

The block 41 is provided with an aperture 53 extending transversely to the shaft 42 and through which aperture extends a swinging bolt 54. The bolt 54 is pivotally mounted intermediate its ends, as at 55, within the aperture 53 and with its opposite ends projecting beyond the aperture. as best shown in Fig. 7. One end of the swinging bolt 54 is yieldably maintained against the keeper flange 54 oi' an angle plate l1 carriedv by the base plate 4I, by means of a plunger 59 which is urged against the other end of the swinging bolt by means of a coiled spring Il disposed ,within a housing II secured-at 32 to the block 4l. 'I'he yielding plunger 59 is providedwith an annular following flange 63 against which one end ofthe'lcoiled.

thus latch the handle in such position for preventing operation of the latching bolt I3.

In order to retract the swinging bolt 34 from latched engagement within the keeper or recess 34 to Permit downward movement of the inner handle 3|, means are provided in the form of a plunger 33 extending through a bore 33 in the extension 43 of block 41 having a collar 31 engageable with'a shoulder provided by the outer end of the recess 33 in the hub 30 of the handle 5I. 'I'he plunger 33 is provided with a rounded head 33 for thumb contact therewith to force the plunger inwardly to retract the swinging bolt 34 from within the latching recess 34 in the flange 33 when the inner handle Il is grasped to swing the- 4cludes means which has operative connection with the key operated tumbler lock shaft 33 for releasing the swinging bolt 34 from latching engagement with the keeper flange 33. Such means comprises a cam bar 1li guidinglyand slidably positioned beneath the keeper flange 33 in advance of the recess 34 by supporting means such as the machine screws 1| extending through a slot 12 in the flange for directing the movement of the bar 13 toward and from the keeper recess. The cam bar ispreferably of a thickness equal to the width of the flange 33 and is provided at its forv ward end with a wedge or cam-shaped nose 13 operative to move under the adjacent end of the Divoted bolt 34 and raise the same out of the keeper recess 34 upon movement of the cam bar toward the recess as shown in Figs. I and 8.

The cam bar 13, at its end opposite the cam nose 13, is pivotally connected as at 14, to one end of a rod or link 13 whose opposite end is pivotally connected at 13 to a lever 11 secured to the key operated tumbler lock shaft 33. The arrangement of parts just described issuch that the swinging bolt 34 is disengaged from the keeper recess 34 bythe lifting action of the cam nose 13 under'the bolt ln opposition to the action of the spring 33 against the opposite end of the bolt at the time the finger 33 has moved to a position to engage the oblique lug 33 on the locking plate I3, as shown in dotted lines in Fig. 3, whereupon further rotation of the key operated tumbler lock shaft 33 will then shift the plate Il and therewith the links 24 and 43 as shown in full lines in Fig. 4, thereby rocking lever 43 and rotating shaft 42 and its handle 3| downwardly to neutral or unlatched position. YBy the movement of the parts Just described in response to turning the key operated tumbler shaft 33 to unlatch the inner handle 3i,

n it will be noted that the shoulder 33 on the locking plate Il has been withdrawn from beneath the projection 32 on the roll-back 33 so that;v the outside door handle 23 may thereafter be moved or rotated to retract the doorilatching bolt I3. A v

In this connection it will be understood that the latching bolt I 3 may also be withdrawn upon furl l ther rotation or downward movement of the inner operated tumbler lock shaft 33, the rocking or swinging bolt 5.4 will snap into the keeper recess 34 to latch the handle 3| against further movement about the axis of its supporting shaft 42. In this reverse movement of the parts by the key operated tumbler lock shaft the cam b/ar 13 will be moved forwardly along the slot in the flange 33 and away from the keeper recess 34, as shown in Fig. 7.

' looked from the inside thereof s As in my patent referred to, the present locking mechanism preferably includes means for locking a window 33 pivotally mounted in the door as at 3|. Such locking means comprises a lever 32 secured to the link 43 adjacent shaft 42, a second lever 33 pivotally connected to lever 32 at 34 and a third lever 33 pivotally connected to lever 33 and further pivotally connected to the door intermediate its ends as at 33. The lever 35 provides a laterally swingable bolt for engagement with and disengagement from a keeper 31 secured to the inside of the window 33 adjacent its lower front corner as shown in Figs. 1, 2 and 6.

Thus it will be seen that` e window is also ultaneously with the locking of the outside handle 23 and the latching of the inside handle 3 I either from the inside of the door by direct upward movement of the inner handle 5| to latched position or indirectly by action of the key operated lock shaft 33, which vas shown in Fig. 5 includes the lock housing and barrel 33' from which the key may be removed.

`It will be particularly noted from an inspection of Figs. 3 and 4 that sumcient lost motion is provided between the operating surfaces of the ilngers 33 and 31 and the cooperating oblique faces of the lug` 33 for the return of the key operated lock plate Il, from the position shown in Fig. 4, by 76 yscribed.

shaft 33 to key retracting position from both the locked and unlocked positions of the mechanism as shown. It will also be noted by reference particularly to Fig. 3 that the recess i4 in the locking l plate I3 is of such length that even when the rollback 30 is dogged by the lockingplate that the space at the rear of the latching bolt I3 is atleast equal to the normal projection of the bolt at the front edge of the door thereby permitting closing -of the door even though the locking mechanism handle operative to retract the-locking bolt upon movement thereof in one direction and operative upon movement in the opposite direction to lock the outside handle against locking bolt retracting movement, other locking means automatically operative upon movement of the inside handle to secure same against movement to unlocking position, and removable key operable means accessible from the outside of a door. providedwith the improved lock. for locking the outside handle against bolt retracting movement and also operable to release the inside and outside handles from deadlocking positions for movement to retract the door vlocking bolt from door latching position.

with this improved look any or au doors on an f automobile be provided with same upon provision of right and left lock arrangements for op- Doslte sides oi' the automobile whereby access may be had through any door regardless of which ones may have been locked by means of the inside handle or the outside key operated means.

Changes may be made in details of construction without departing from the scope of the invention as dened in the subjoined claims.

What I claim and desire to secure by United States Letters Patent is:

1. An automobile door lock comprising a latching bolt, an outside door handle, and an inside door handle, means operative upon movement of the outside door handle for retracting the bolt, means operative upon movement ofthe inside handle for locking the outside handle against bolt retracting movement, means operative to latch the inside handle in outside handle locking position, and key operable means accessible from the outside of the door for releasing said latching means.

2. An automobile door lock comprising a latching bolt, an outside door handle, and an inside door handle, means operative upon movement of the inside handle in one direction for retracting the bolt and in another direction for locking the outside handle against boit retracting movement, means operative to latch the inside handle in outside handle locking position, and key operable means for releasing said latching means.

3. An automobile door lock comprising a locking bolt having a plate extension, an outer` handle connected with a roll-back for engaging the bolt plate extension to retract. said locking bolt, a slidably mounted roll-back locking plate having a recess in which said locking bolt is slidably disposed, an extension on said roll-back engageable by a shoulder on said locking plate when in one position to lock said roll-back and outer handle against movement, an inner handle, link connections between said inner handle and said locking plate for moving same to and from said rollback locking position upon predetermined movement of the inner handle, and a lost motion connection between said link connections and the bolt plate extension for retracting said locking bolt upon further movement of said inner handle after moving said locking plate from roll-back locking position. n y

4. An automobile door lock according to claim 3 together with key operable means for moving said locking plate to and from roll-back locking position irrespective of the position in which the locking plate may have been moved by the inner handle.' g

5. An automobile door lock according to claim outer handle, and a lost motion connection between said second means and said locking bolt for retraction of the latter upon further movement of the inner handle in the last mentioned direction. l

7. An automobile door lock comprising a slidably mounted locking bolt having a plate extension, a locking plate slidably mounted at one side of the plate extension, an outer pivotally mounted handle, a roll-back connected with the handle and having a pair of spaced projections. one of which is engageable with said plate extension for retracting the locking bolt upon swinging movement of the outer handle, a shoulder on the locking plate for engagement by the other projection upon forward movement o! the locking plate for locking the roll-back against locking bolt retracting movement, an inner pivotally mounted handle having a link connection with the locking plate for movement thereof to said locking position upon swinging movement of the inner handle in one direction, means operative for latching said inner handle in said locking position, key operable means accessible from the outside of the door for retracting said latching meansand for moving said locking plate in a rearward direction for unlockingsaid roll-back and for moving said inner handle in the opposite 3 together with means operative to latch said inner handle in" roll-back locking position, and key operable means for releasing said latch means and for moving said locking plate together with the inner handle to roll-back unlocking position.

6. An automobile door look comprising a slidably mountedN locking bolt, a pivotally mounted outer handlefh pivotally mounted inner handle, means operable by movement of the outer handle for retracting the locking bolt, means operable upon movement of theinner handle in one direction for locking said nrst means and outer handle against operative movement, means operative upon said movement oi' the inner handle for latching same in said locking position, key operable means accessible from the outside of the door for releasing said latching means and for moving the inner handle in an opposite direction to a position for unlocking said nrst means and direction, and a lost motion connection between said plate extension and said link conection i'or retracting said locking bolt upon further movement of said inner handle in! the last mentioned direction.

8. An automobile door lock according to claim 7 wherein said key operable means comprises a key rotatable spindle, spaced lingers on the spindle, and a lug on the locking plate intermediate said ngers for engagement with one or the other of said fingers for moving said locking plate in said rearward direction or to a forward roll-back locking position.

9. An automobile door lock according to claim '7 wherein said locking plate is provided with an elongated recess in which said locking bolt is slldable, said recess being of a length to permit retraction of said locking bolt for closingof the door when the locking plate is in roll-back locking position.

10. An automobile door lock according to claim 7 wherein said key operable means for retracting said latching means comprises a key actuated' rotatable spindle, a lever on the spindle, a latching means releasing cam plate bar, and a linkr connection between the lever and cam plate bar.

11. An automobile door lock comprising a locking bolt, inner and outer door handles pivotally mounted on opposite sides oi the door for independent operation oi' said bolt, means providing an operative connection between the inner handle and said bolt when the inner handle is swung,

l position.

12. An automobile Pri-Sing door and window lock comtwo relatively movable bolts, inner and outer handles pivotally mounted on opposite sides of said door for independent operation of said bolts, means providing an operative connection between one handle and one bolt to retract said one bolt when said one handle is swung on its mounting in one direction, said means being operative when said one handle is swung in the opposite direction to move the other bolt to locking position and to prevent operation of the other handle, interlocking means on said one handle and door engageable upon movement of said one handle into said last named position to secure said one handle against movement to release said other handle, and key operated means accessible from the outside of the door for operating said one handle and its interlocking means.

13. In a lock for an automobile door having a relatively movable sash, bolt means for securing both said door and sash in closed positions, handles pivotally mounted on oppoiste sides of said door, the outer handle having a connection with said bolt means for normally releasing said door, said bolt means including a connection with the inner handle for operation thereby to also release the door upon swinging movement of said inner handle in one direction, said last mentioned connection being operative upon swinging movement of said inner handle in the opposite direction to move said bolt means to lock said sash and prevent further operation of said means by the latching means and deadlocking means to and from operative' positions.

15. An automobile door lock comprising a cover plate in spaced parallel relation to the base plate, a bolt plate and a locking plate disposedA 1 between said base and cover plates, the locking plate being slidably disposed betweenan angular edge of the cover plate and a lug on the base plate, the locking plate having an elongated recess, the bolt plate having a locking bolt slidably disposed in said recess and having shoulders normally engaged by lugs on the base plate by means of a spring engaged with said lock bolt. an outer handle connected with a roll-back having angularly spaced projections, a shoulder on successively engageable in said recess upon movement of the locking plate -for holding same in roll-back locking and unlocking position.

17. In a lock for automobile doors and the like, the combination of a spring projected bolt, outside and inside handles on the door, means connecting the handles and bolt for retracting said locking plate engageable by onev of said pro- Jections to'locksaid roll-back against rotation,

the other projection engageable with saidv boltplate for retracting said bolt against the action of said spring upon'retraction of said locking plate for clearance by said ilrst projection of said shoulder, an inner handle. and operative connections between said inner handle andl said locking plate and bolt plate for'retracting same in succession.

18. An automobile door lock according to claim 15 wherein said locking plate is provided with a pair of spaced recesses, and aspring member the bolt by either handle,deadlocking means associated `with each of the handles, operating connections between said inside handle and deadlocking means operative 'when said inside handle is in normal inoperative position to free both handles for operation of the bolt, and being operative when said inside handle is-moved in one direction from said inoperative position to lock both handles, and key operated means operable from the outside of the door and associated with said deadlocking means to free or lock both of said handles.

18. In a lock for an automobile door having a relatively movable sash, independently movable bolts for securing the door and vsash in closed positions, operating means on the outside and thel inside of the door for controlling the movements of the bolts, a link connected to ,one of the operating means and providing a lost motion connection between the bolts, deadlocking means for the other operating means associated with said `link for operation by said link, latching means also associated with said link for securing same in one of its positions of movement, and key operative means accessible from the outside oi.' the door and having connections with said movable in one direction to retract one yof said bolts, said linkage being movable in the opposite direction to move the other bolt to securing position and to dog the operating means on the opposite side of the door, latching means associated with said linkage and operable to secure the linkage in one of its positions of movement, and key operated means on said opposite side of the door and having connections for actuating said latching means and moving said linkage means in said opposite direction.

20. In a lock for automobile doors, the combi-v nation of a bolt movably mounted in the door, separate operating means connected to said bolt and operable one :rom the voutside and the other from the inside of the door for moving said boit in its mounting, deadlocking means for one of the bolt moving means operative by the other bolt moving means, other locking means associated with said last mentioned bolt ,'moving means for securing same in deadlockingposition, and -key operated means operative from the outside of the door and associated with said other locking means and with said deadlocking means tfior moving same to and from their locking posions.

HENRY M. Fmr-rom. l 

